US Air Force (USAF) Airmen assigned to the 157th Air Refueling Wing (ARW), will pick up small rocks or debris that may be a potential hazard to aircraft, as they conduct a Foreign Object Damage (FOD) walk, on the flight line at Pease Air National Guard Base (ABGB), NEW Hampshire (NH). A USAF KC-135 Stratotanker aircraft is visible in the background